Spring-wheel.



A. CARLSON & 0. KARLSON.

SPRING WHEEL.

APPLIUATION FILED .TUNE 25, 190B.'

Patented Mar. 30, 1909.

lill

A. CARLSON & 0. KARLSON.

SPRING WHEEL.

APPLIOATION FILED JUNE z5, 190s.

91 6,842. Patented Mar. 30,- 1909. 2 SHEETS-SHEET 2. I: i1-'L /5- Ll/wanton? atkomffg AXEL CARLSON AND `oLoF KARnsoN, or sioux cITY, IowA.

' A SPRING-WHEEL.

specification of Letters Patent.

Patented March 3o, 190e.

Application 1ed'Ju`ne. 25, 1908. Serial No. 446,330.

To all whom t may concern; l

Be it known-that'we, AXEL CARLSON and OLOF KARLsoN, `citizens of the United States, residingat Sioux Cit in the county of Woodbury and State of Iowa, have invented certain new and useful Improvements in Spring- Wheels, of which the following is a specificauseful'improvements in vehicle wheels and more especially to that class designed for use upon motor vehicles.

he present invention has for its objects among others to provide a wheel withan elastictelescopic tire which will avoid all of the objectlons to ordinary rubber pneumatic A.tiresfanti also avoiding thev necessity of inli O fiating the same of puncture.

Another object of the invention is to disv pense with employing which the cushion tire is retained. The metallic rim is formed in sections and within the the wooden rim heretofore used,

same are disposed springs of substantially` U-shape tol provide the requlsite resiliency. Between the metallic rim and the inner rim to which the spokes are attached there are interposed bands or rings of rubber, cork, or other suitable materialwhich clude dust or water and yet allowing ease of play of the telescopic rim.

Other objects and advantages of the invention `w1ll hereinafter appear and the novel features thereof will be particularly pointed out in the appended claim.

he invention is clearly illustrated in the accompanying drawings, which, with the numerals of reference marked thereon, form a part of this specification, and in which-` Figure lisa side elevation of a Wheel embodying our invention. tially central section through the same as on Fig.I 3 is a substanright angles to the section of Fig. 2, as on the line 3-3 of the latter figure. Fig. 4 is a perspective view of one of the springs removed. e numerals vof reference indicate like partev throughout the several views'.

Referring to the drawings lpdesignates the hub with bushing 2,

3 are 4 are cone-shaped members into which the received the yrings 9 of and dispensing with liabilityn1 lieu .thereof a metallic` rim in serves to eX-y Fig. 2 is a subst'an'-,A

' over obstructions.

spokes radiating from the. hub, in which they are secured in any suitable man-V ner."r'"

outer ends of the spokes are received, there being one placed oneach spoke before the inner rim is set solid thereon. These 'coneshaped'members lare provided with screwthreaded openings, as seen at 5, for therece tion Of the screws or bolts 6 which secure t 1e inner rim 7 to the spokes, as seen clearly in Figs. l and 3. This rim 7 is of channel shape, as seen clearl in Fig. 2, and through the inner periphera `wall of which the said screws 6 are passed, as seen best in Fig. 2. The side walls A upon their inner faces with the annular grooves 8, as seen best in Fig. 2, in which are rubber, cork, or any other suitable material so as to form a dust and Water tight joint between the inner walls of'said inner tire and the outer walls of the telescopic metallic rim 10. This rim is of channel shape, as seen in Fig.'2, being arranged reversely to the inner rim and adapted to slide therein. This telescopic metallic rim is formed in sections, in this instance shown'asA two 1n number, asseen clearly m Figs: 1 and 3.

11 are springs of substantially the` form.

shown in Fi s. 3 and 4 being .secured at one end by suita le means as rivets or screws 12 to the inner peripheral wall of the inner rim 7, as seen in Fig. 3, the said securing means of this inner rim are providedl 12 passlng through holes 13 in one end of theA spring, the other end of the spring being provided with an elongatedslot 14 in which is received4 a screw or other means 15 secured in the inner peripheral wall of the telescopicv lmetallic rim 10, as seen clearly in Fig. 3,'.to'

permit of thevnecessary movement in the direction of the len th ofthe spring as the latter are put un er compression.

16 is the outer metallic rim, of channel form, channel thereof is secured a cushion or other suitable tire 17 in any suitable manner, as by the'screws or analogous means 18, as seen in Fig. 2. T

lWith the parts constructed and arran ed as hereinbefore described, it lwill be reaily ,understood that the tire-will give in passing ,or rough places, and that a construction in which we have provided the objectionable features ofwheels as now yconstructed forautomobiles, etc. are not present. T

Modifications indetail maybe resorted to Withoutdeparting from thel spirit of the inventionfor sacrificing anyof its advantages.

as seen best in Fig. 2, and within the CII What is claimed as new-is'- I substantially the saine direction around the In a Wheel of the characterv described, a Wheel with the slotted ends thereof having hub, spokes seeured'thereto, an inner chanl sliding vengagement with the metallic rim, 15

nel rim secured to the spokes, a metallic and an outer metallic rim ennbracingzg"they rim of channel form with its side Walls reirst-rnentioned metallic rim and-provided ceived within and telescoping with the side With a tire.

Walls of the in ner rim, substantially U-shaped springs having one end xedly secured to the inner rim and the otherv ends provided With elongated slots, means secured to the metal# lic rim and having loose connection With said slots, the endsvof the springs extending in AXEL CARLSON. OLOF KARLSON.'

Witnesses:

. H. A. BARR, H. M. CUMMINs. 

